20 Oct, 2015
2 commits
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By setting the MODALIAS variable in uevents, userspace helpers will be
enabled to load modules via the module alias associated with a device.This information is required to automatically load HDA codec drivers
instead of having to explicitly request the various modules in the HDA
core code.[Note that currently the legacy HDA controller driver tries to bind
codec modules manually. It's for supporting the fallback generic
drivers. This new udev modalias support was added rather for ASoC
HDA ext drivers, since this addition itself won't hurt the legacy HDA
-- tiwai][Use the common helper function to generate the modalias -- tiwai]
Signed-off-by: Thierry Reding
Reviewed-by: Vinod Koul
Tested-by: Subhransu S Prusty
Signed-off-by: Takashi Iwai -
For generating modalias entries automatically, move the definition of
struct hda_device_id to linux/mod_devicetable.h and add the handling
of this record in file2alias helper. The new modalias is represented
with combination of vendor id, device id, and api version as
"hdaudio:vNrNaN".This patch itself doesn't convert the existing modaliases. Since they
were added manually, this patch won't give any regression by itself at
this point.[Modified the modalias format to adapt the api_version field, and drop
invalid ANY_ID definition by tiwai]Signed-off-by: Subhransu S. Prusty
Reviewed-by: Vinod Koul
Tested-by: Subhransu S Prusty
Signed-off-by: Takashi Iwai
03 Jun, 2015
1 commit
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HDA codec drivers can be matched using vendor id and revision id typically.
So provide a match function which does this and is loaded when driver hasn't
provided one (default behaviour)Signed-off-by: Jeeja KP
Signed-off-by: Vinod Koul
Signed-off-by: Takashi Iwai
23 Mar, 2015
1 commit
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Define the common hd-audio driver and device types to bind over
snd_hda_bus_type publicly. This allows to implement other type of
device and driver code over hd-audio bus.Now both struct hda_codec and struct hda_codec_driver inherit these
new struct hdac_device and struct hdac_driver, respectively.The bus registration is done in subsys_initcall() to assure it
before any other driver registrations.Signed-off-by: Takashi Iwai
